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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Fujii T, Kitaguchi M, Okamura K. Correction to: Efect of the Energy Intake on the Iron Status of Resistance Exercises Performed in Rats. Biol Trace Elem Res 2023; 201:5884. [PMID: 36856951 DOI: 10.1007/s12011-023-03617-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Takako Fujii
- Exercise Nutrition Laboratory, Department of Health and Nutrition, Osaka-Aoyama University, Osaka, Japan.
| | - Mizuki Kitaguchi
- Exercise Nutrition Laboratory, Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Osaka, Japan
| | - Koji Okamura
- Exercise Nutrition Laboratory, Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Osaka, Japan
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Fujii T, Kitaguchi M, Okamura K. Effect of the Energy Intake on the Iron Status of Resistance Exercises Performed in Rats. Biol Trace Elem Res 2023; 201:5272-5277. [PMID: 36786965 DOI: 10.1007/s12011-023-03594-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/03/2023] [Indexed: 02/15/2023]
Abstract
In many cases, athletes compensate for nutrient deficiencies due to a reduced dietary intake by taking supplements or other means. However, in what ways nutrients are utilized by the body when it is deficient in energy and yet receives adequate amounts of the required nutrients are unclear. We therefore examined the effect of the balance between available energy and iron intake on the iron nutritional status of athletes. The experiment was conducted in two parts. Four-week-old male rats were divided into two groups based on energy and iron sufficiency: Experiment 1 was energy-sufficient and iron-sufficient (ES-FeS) and energy-sufficient and iron-deficient (ES-FeD). Experiment 2 was energy-deficient and iron-sufficient (ED-FeS) and energy-deficient and iron-deficient (ED-FeD) groups. All rats were made to perform climbing exercises 3 days a week at 5 P.M. The results showed that a significantly higher hematocrit, hemoglobin, plasma iron concentration, and TfS were found in the iron-sufficient group than in the iron-deficient group, TIBC was significantly lower in the iron-sufficient group than in the iron-deficient group, and TfS was significantly higher in the iron-sufficient group than in the iron-deficient group, irrespective of energy intake. It was suggested that restricting both iron and energy intake may significantly decrease the amount of iron in the liver and accelerate the metabolic turnover of red blood cells, while restricting iron intake but providing adequate energy intake suggested that resistance exercise-induced tissue iron repartitioning was not altered by iron sufficiency or deficiency.
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Affiliation(s)
- Takako Fujii
- Exercise Nutrition Laboratory, Department of Health and Nutrition, Osaka-Aoyama University, Osaka, Japan.
| | - Mizuki Kitaguchi
- Exercise Nutrition Laboratory, Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Osaka, Japan
| | - Koji Okamura
- Exercise Nutrition Laboratory, Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Osaka, Japan
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Nakanishi T, Yoneshima Y, Okamura K, Yanagihara T, Hashisako M, Iwasaki T, Haratake N, Mizusaki S, Ota K, Iwama E, Takenaka T, Tanaka K, Yoshizumi T, Oda Y, Okamoto I. MicroRNA-326 negatively regulates CD155 expression in lung adenocarcinoma. Cancer Sci 2023; 114:4101-4113. [PMID: 37565582 PMCID: PMC10551600 DOI: 10.1111/cas.15921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 06/19/2023] [Accepted: 07/13/2023] [Indexed: 08/12/2023] Open
Abstract
Treatment with immune checkpoint inhibitors induces a durable response in some patients with non-small-cell lung cancer, but eventually gives rise to drug resistance. Upregulation of CD155 expression is implicated as one mechanism of resistance to programmed death receptor-1 (PD-1)/PD-1 ligand (PD-L1) inhibitors, and it is therefore important to characterize the mechanisms underlying regulation of CD155 expression in tumor cells. The aim of this study was to identify microRNAs (miRNAs) that might regulate CD155 expression at the posttranscriptional level in lung cancer. Comprehensive miRNA screening with target prediction programs and a dual-luciferase reporter assay identified miR-346, miR-328-3p, miR-326, and miR-330-5p as miRNAs that bind to the 3'-UTR of CD155 mRNA. Forced expression of these miRNAs suppressed CD155 expression in lung cancer cell lines. Immunohistochemical staining of CD155 in tissue specimens from 57 patients with lung adenocarcinoma revealed the median tumor proportion score for CD155 to be 68%. The abundance of miR-326 in these specimens with a low level of CD155 expression was significantly greater than in specimens with a high level (p < 0.005). Our results thus suggest that miR-326 negatively regulates CD155 expression in lung adenocarcinoma and might therefore play a role in the development of resistance to PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Takayuki Nakanishi
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Yasuto Yoneshima
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Koji Okamura
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Toyoshi Yanagihara
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Mikiko Hashisako
- Department of Anatomic Pathology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Takeshi Iwasaki
- Department of Anatomic Pathology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Naoki Haratake
- Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Shun Mizusaki
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Keiichi Ota
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Eiji Iwama
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Tomoyoshi Takenaka
- Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Kentaro Tanaka
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Tomoharu Yoshizumi
- Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
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Tsutsumi H, Inoue H, Shiraishi Y, Hirayama A, Nakanishi T, Ando H, Nakajima M, Shinozaki S, Ogata H, Okamura K, Kimura S, Ogawa T, Ota K, Yoneshima Y, Tanaka K, Hamada N, Okamoto I, Iwama E. Impact of increased plasma levels of calreticulin on prognosis of patients with advanced lung cancer undergoing combination treatment of chemotherapy and immune checkpoint inhibitors. Lung Cancer 2023; 181:107264. [PMID: 37276707 DOI: 10.1016/j.lungcan.2023.107264] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/20/2023] [Accepted: 05/30/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND Damage-associated molecular pattern (DAMP)-related immunogenic cell death triggers secondary adaptive immune responses. The relationship between DAMP levels and prognosis in patients with non-small cell lung cancer (NSCLC) who undergo a combination therapy of immune checkpoint inhibitors (ICI) and chemotherapy remains unclear. METHODS Serial plasma samples were prospectively collected from 45 patients treated with ICI combination therapy for advanced NSCLC. Plasma concentrations of high-mobility group box 1 (HMGB1), calreticulin (CRT), annexin A1, and heat shock protein 70 were measured. Associations between increases in plasma DAMP levels and the efficacy of the ICI combination therapy were evaluated. RESULTS The maximum fold changes in plasma levels differed across individuals but demonstrated a marked increase, especially for CRT (mean ± SEM, 11.61 ± 46.15). Increased plasma DAMP levels were not clearly associated with clinical responses. There was a significant correlation between the maximum fold change in CRT levels and progression-free survival (PFS; r = 0.49, P < 0.001). Median PFS and overall survival (OS) rates were higher in patients with a ≥ 2-fold increase in plasma CRT levels than in those with a < 2-fold increase (PFS, 14.9 versus 6.0 months, hazard ratio (HR), 0.58; P = 0.17; OS, not reached versus 21.6 months, HR, 0.31, P = 0.02). CONCLUSIONS Plasma CRT level monitoring has the potential to predict the efficacy of ICI combination therapy and shed light on the mechanisms underlying DAMP-related immunogenic cell death.
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Affiliation(s)
- Hirono Tsutsumi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Inoue
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Respiratory Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Yoshimasa Shiraishi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Aiko Hirayama
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takayuki Nakanishi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Ando
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Maako Nakajima
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Seiji Shinozaki
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroaki Ogata
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koji Okamura
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinichi Kimura
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomohiro Ogawa
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiichi Ota
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuto Yoneshima
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Tanaka
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Naoki Hamada
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Respiratory Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiji Iwama
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Okamura K, Inoue H, Tanaka K, Ikematsu Y, Furukawa R, Ota K, Yoneshima Y, Iwama E, Okamoto I. Immunostimulatory oncolytic activity of coxsackievirus A11 in human malignant pleural mesothelioma. Cancer Sci 2023; 114:1095-1107. [PMID: 36369966 PMCID: PMC9986072 DOI: 10.1111/cas.15645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/14/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive solid cancer with a poor prognosis, whereas coxsackievirus A11 (CVA11) is a potential oncolytic virus for cancer treatment. We here investigated the oncolytic activity of CVA11 with human MPM cell lines. CVA11 infection was cytotoxic in all six MPM cell lines examined and showed no or minimal cytotoxicity toward normal human normal cell lines. MPM cells with a higher surface level of intercellular adhesion molecule-1 (ICAM-1) expression tended to be more susceptible to CVA11-induced cytotoxicity, and a neutralizing antibody to ICAM-1 attenuated such cytotoxicity. CVA11 infection activated signaling by Akt and extracellular signal-regulated kinase (ERK) pathways, and inhibitors of such signaling also abrogated CVA11-mediated cytotoxicity. Furthermore, CVA11 infection-triggered multiple modes of tumor cell death including apoptosis, pyroptosis, and necroptosis, and such death was accompanied by the release or exposure of the proinflammatory cytokine interleukin-1β and damage-associated molecular patterns such as calreticulin, high-mobility group box-1, annexin A1, and heat shock protein 70, which are hallmarks of immunogenic cell death. Notably, in vivo treatment of human MPM xenografts with intratumoral CVA11 injection resulted in significant suppression of tumor growth in SCID mice, and all mice infected with CVA11 showed no significant change in body weight. Our findings collectively suggest that the oncolytic activity of CVA11 for MPM is dependent on ICAM-1 as a virus receptor, as well as on Akt and ERK signaling, and that oncolytic virotherapy with CVA11 is a promising treatment modality with immunostimulatory activity for human MPM.
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Affiliation(s)
- Koji Okamura
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Inoue
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Kentaro Tanaka
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuki Ikematsu
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Respiratory Medicine, National Hospital Organization Omuta Hospital, Fukuoka, Japan
| | - Rie Furukawa
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Respiratory Medicine, Hamanomachi Hospital, Fukuoka, Japan
| | - Keiichi Ota
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Yasuto Yoneshima
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiji Iwama
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Inoue H, Tsutsumi H, Okamura K, Ota K, Yoneshima Y, Iwama E, Tanaka K, Okamoto I. EP08.01-036 Low-dose EGFR-TKIs Directly Induce Maturation and Functional Activity of Human Dendritic Cells in an EGFR-independent manner. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ghasiya P, Okamura K. A Hybrid Approach to Analyze Cybersecurity News Articles by Utilizing Information Extraction & Sentiment Analysis Methods. Int J Semantic Computing 2022. [DOI: 10.1142/s1793351x22500015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cybersecurity is becoming indispensable for everyone and everything in the times of the Internet of Things (IoT) revolution. Every aspect of human society — be it political, financial, technological, or cultural — is affected by cyber-attacks or incidents in one way or another. Newspapers are an excellent source that perfectly captures this web of cybersecurity. By implementing various NLP techniques such as tf-idf, word embedding and sentiment analysis (SA) (machine learning method), this research will examine the cybersecurity-related articles from 18 major newspapers (English language online version) from six countries (three newspapers from each country) collected within one year from April 2018 till March 2019. The first objective is to extract the crucial events from each country, which we will achieve by our first step — ‘information extraction.’ The next objective is to find out what kind of sentiments those crucial issues garnered, which we will accomplish from our second step — ‘SA.’ SA of news articles would also help in understanding each ‘nation’s mood’ on critical cybersecurity issues, which can aid decision-makers in charting new policies.
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Affiliation(s)
- Piyush Ghasiya
- Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka City, Fukuoka 819-0395, Japan
| | - Koji Okamura
- Research Institute for Information Technology, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka City, Fukuoka 819-0395, Japan
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Affiliation(s)
- M. Ohishi
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - K. Fukui
- Research and Development Center, Osaka Medical College, Takatsuki, Japan
| | | | - Y. Itoh
- Tokyo Kantei Co., Ltd, Shinagawa, Japan
| | - H. Yanagihara
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan
- Tokyo Kantei Co., Ltd, Shinagawa, Japan
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Okamura K, Inoue H, Ikematsu Y, Furukawa R, Ota K, Yoneshima Y, Iwama E, Tanaka K, Okamoto I. Abstract 1918: Coxsackievirus A11 elicits a potent oncolytic activity in human malignant pleural mesothelioma via ICAM-1 receptor. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-1918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive solid cancer with dismal prognosis. Oncolytic virotherapy is a promising anticancer treatment that directly lyses tumor cells. Coxsackievirus A11 (CVA11) is an emerging oncolytic virus against solid cancers. Herein we tested whether CVA11 infection has an oncolytic activity in human MPM cell lines and identified its cognate receptor. We found that CVA11 infection shows a remarkable oncolytic activity in six of six human MPM cell lines. MPM cells having higher intercellular adhesion molecule-1 (ICAM-1) expression showed higher CVA11-induced cytotoxicity, and that identified ICAM-1 as its surface receptor because coinfection with neutralizing ICAM-1 antibody substantially abrogated CVA11-triggered cytotoxicity in MPM cells. In addition, we unraveled that the activations of both phosphoinositide 3-kinase/Akt and mitogen-activated protein (MAP)/extracellular signal-regulated (ERK) kinase (MEK) signaling pathways partially but significantly contributed to the CVA11-triggered cytotoxicity of CVA11 as evidenced by treating with respective inhibitors. Taken together, our findings show a novel oncolytic virotherapy using CVA11 could be an alternative therapeutic modality for human MPM.
Citation Format: Koji Okamura, Hiroyuki Inoue, Yuki Ikematsu, Rie Furukawa, Keiichi Ota, Yasuto Yoneshima, Eiji Iwama, Kentaro Tanaka, Isamu Okamoto. Coxsackievirus A11 elicits a potent oncolytic activity in human malignant pleural mesothelioma via ICAM-1 receptor [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1918.
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Inoue H, Tsutsumi H, Tanaka K, Iwama E, Shiraishi Y, Hirayama A, Nakanishi T, Ando H, Nakajima M, Shinozaki S, Ogata H, Uryu K, Okamura K, Kimura S, Ogawa T, Ota K, Yoneshima Y, Hamada N, Nakanishi Y, Okamoto I. Increased plasma levels of damage-associated molecular patterns during systemic anticancer therapy in patients with advanced lung cancer. Transl Lung Cancer Res 2021; 10:2475-2486. [PMID: 34295655 PMCID: PMC8264341 DOI: 10.21037/tlcr-21-92] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/30/2021] [Indexed: 12/28/2022]
Abstract
Background Immunogenic cell death (ICD) characterized by the release of damage-associated molecular patterns (DAMPs) from dying cancer cells may contribute to the synergistic antitumor effect of cytotoxic chemotherapy combined with an immune checkpoint inhibitor. The kinetics of circulating DAMP levels in cancer patients have remained largely uncharacterized, however. Methods We evaluated the possible effects of various systemic anticancer therapy modalities on the kinetics of plasma DAMP concentrations in a prospective observational study of patients with advanced lung cancer. The plasma concentrations of high-mobility group box 1 (HMGB1), calreticulin (CRT), heat shock protein 70 (HSP70), annexin A1, and histone H3 were thus determined in 121 such patients at four time points during the first cycle of treatment. Results The mean of the maximum fold change in HMGB1, HSP70, or annexin A1 concentration observed during treatment was significantly greater than the corresponding baseline value (P<0.005). The maximum fold changes in HMGB1 and CRT concentrations tended to be associated with clinical response as evaluated by RECIST criteria, although the changes in the levels of these two DAMPs were not correlated, suggestive of differential induction mechanisms. Among the various treatment modalities administered, platinum-based combination or single-agent chemotherapy tended to elicit robust increases in the concentrations of HMGB1 and CRT. Conclusions Serial monitoring of plasma revealed that systemic anticancer therapy increased the circulating levels of HMGB1 and CRT and that these changes tended to be associated with clinical response, suggesting that agents capable of releasing these DAMPs into plasma might induce ICD in advanced lung cancer patients.
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Affiliation(s)
- Hiroyuki Inoue
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Center for Clinical and Translational Research, Kyushu University Hospital, Fukuoka, Japan.,Department of Respiratory Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Hirono Tsutsumi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Tanaka
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiji Iwama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshimasa Shiraishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Aiko Hirayama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takayuki Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Ando
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Maako Nakajima
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Seiji Shinozaki
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroaki Ogata
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuyasu Uryu
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koji Okamura
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinichi Kimura
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomohiro Ogawa
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiichi Ota
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuto Yoneshima
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Naoki Hamada
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Center for Clinical and Translational Research, Kyushu University Hospital, Fukuoka, Japan
| | - Isamu Okamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Ghasiya P, Okamura K. Investigating COVID-19 News Across Four Nations: A Topic Modeling and Sentiment Analysis Approach. IEEE Access 2021; 9:36645-36656. [PMID: 34786310 PMCID: PMC8545217 DOI: 10.1109/access.2021.3062875] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 05/05/2023]
Abstract
Newspapers are very important for a society as they inform citizens about the events around them and how they can impact their life. Their importance becomes more crucial and indispensable in the times of health crisis such as the current COVID-19 pandemic. Since the starting of this pandemic newspapers are providing rich information to the public about various issues such as the discovery of a new strain of coronavirus, lockdown and other restrictions, government policies, and information related to the vaccine development for the same. In this scenario, analysis of emergent and widely reported topics/themes/issues and associated sentiments from various countries can help us better understand the COVID-19 pandemic. In our research, the database of more than 100,000 COVID-19 news headlines and articles were analyzed using top2vec (for topic modeling) and RoBERTa (for sentiment classification and analysis). Our topic modeling results highlighted that education, economy, US, and sports are some of the most common and widely reported themes across UK, India, Japan, South Korea. Further, our sentiment classification model achieved 90% validation accuracy and the analysis showed that the worst affected country, i.e. the UK (in our dataset) also has the highest percentage of negative sentiment.
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Affiliation(s)
- Piyush Ghasiya
- Graduate School of Information Science and Electrical EngineeringKyushu UniversityFukuoka819-0395Japan
| | - Koji Okamura
- Research Institute for Information Technology, Kyushu UniversityFukuoka819-0395Japan
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14
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Rodriguez A, Okamura K. Enhancing data quality in real-time threat intelligence systems using machine learning. Soc Netw Anal Min 2020. [DOI: 10.1007/s13278-020-00707-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Inoue H, Tsutsumi H, Shiraishi Y, Okamura K, Ota K, Yoneshima Y, Iwama E, Tanaka K, Okamoto I. Dynamic monitoring of plasma DAMP proteins during various anticancer agents in advanced lung cancer patients. Lung Cancer 2020. [DOI: 10.1183/13993003.congress-2020.1644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Inoue H, Tsutsumi H, Shiraishi Y, Okamura K, Nakanishi Y, Okamoto I. Abstract 5596: Dynamic monitoring of plasma DAMP proteins during multimodal anticancer treatment in advanced lung cancer patients. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Immunogenic cell death characterized by the release of damage-associated molecular patterns (DAMPs) from dying cancer cells is a potential contributor to the synergistic antitumor effects of the combination of cytotoxic chemotherapy with immune checkpoint blockade. However, little information on the kinetics of circulating DAMP levels in cancer patients has been available. We evaluated the possible effects of various anticancer treatment modalities on the kinetics of plasma DAMP proteins in lung cancer patients. In a prospective observational study, plasma concentrations of three representative DAMP proteins–high-mobility group box 1 (HMGB1), calreticulin (CRT), and histone H3–in 50 patients with advanced lung cancer were measured at five time points during the first cycle of anticancer therapy by ELISA assay. The plasma levels of HMGB1 and CRT increased during the first treatment cycle in 42 (84%) and 35 (70%) patients, respectively, with these increases being detectable as early as day 3. The maximum fold changes in HMGB1 and CRT concentrations was associated with clinical response. Among the various treatment modalities, cytotoxic chemotherapy induced the greatest increases in the concentrations of these DAMPs. There was no correlation between the maximum fold changes in the plasma levels of HMGB1 and CRT. Meanwhile, histone H3 was essentially undetectable in most patients. In conclusion, serial monitoring of plasma revealed that anticancer treatment modalities increased the circulating levels of DAMPs with their association with clinical response, suggesting that agents capable of increasing the release of DAMPs into plasma might induce immunogenic cell death in advanced lung cancer patients.
Citation Format: Hiroyuki Inoue, Hirono Tsutsumi, Yoshimasa Shiraishi, Koji Okamura, Yoichi Nakanishi, Isamu Okamoto. Dynamic monitoring of plasma DAMP proteins during multimodal anticancer treatment in advanced lung cancer patients [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5596.
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Hayashi M, Tsunoda T, Sato F, Yaguchi Y, Igarashi M, Izumi K, Nishie W, Ishii N, Okamura K, Suzuki T, Hashimoto T. Clinical and immunological characterization of 14 cases of dipeptidyl peptidase‐4 inhibitor‐associated bullous pemphigoid: a single‐centre study. Br J Dermatol 2019; 182:806-807. [DOI: 10.1111/bjd.18516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M. Hayashi
- Department of Dermatology Yamagata University Faculty of Medicine Yamagata Japan
| | - T. Tsunoda
- Department of Dermatology Yamagata University Faculty of Medicine Yamagata Japan
- Division of Dermatology Yamagata City Hospital Saiseikan Yamagata Japan
| | - F. Sato
- Division of Dermatology Yamagata City Hospital Saiseikan Yamagata Japan
| | - Y. Yaguchi
- Department of Dermatology Yamagata University Faculty of Medicine Yamagata Japan
- Division of Dermatology Yamagata City Hospital Saiseikan Yamagata Japan
| | - M. Igarashi
- Division of Diabetes and Endocrinology Yamagata City Hospital Saiseikan Yamagata Japan
| | - K. Izumi
- Department of Dermatology Hokkaido University Graduate School of Medicine Sapporo Japan
| | - W. Nishie
- Department of Dermatology Hokkaido University Graduate School of Medicine Sapporo Japan
| | - N. Ishii
- Department of Dermatology Kurume University School of Medicine Kurume Japan
| | - K. Okamura
- Department of Dermatology Yamagata University Faculty of Medicine Yamagata Japan
| | - T. Suzuki
- Department of Dermatology Yamagata University Faculty of Medicine Yamagata Japan
| | - T. Hashimoto
- Department of Dermatology Osaka City University Graduate School of Medicine Osaka Japan
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18
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Dam TT, Okamura K, Nakajima T, Yonemoto Y, Suto T, Arisaka Y, Tomonaga H, Tachibana M, Tajika T, Vu LD, Chikuda H, Tsushima Y. Axillary lymph-node metabolic activity assessment on 18F-FDG-PET/CT in rheumatoid arthritis patients treated with biologic therapies. Scand J Rheumatol 2019; 49:96-104. [PMID: 31578102 DOI: 10.1080/03009742.2019.1650106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objective: Recent studies have provided new insights into the role of lymph nodes (LNs) in rheumatoid arthritis (RA). The aim of this study was to evaluate the metabolic activity of the axillary LNs in relation to that of the upper limb joints and the clinical assessment of disease activity in RA patients treated with biologic therapies.Method: 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (18F-FDG-PET/CT) scans were acquired for 64 patients with RA at baseline and after 6 months of biologic therapy, and the patients' clinical status was evaluated. The maximum standardized uptake value (SUVmax), metabolic active volume, and total lesion glycolysis (TLG) were used to assess glucose metabolism in the LNs and 12 joints. Clinical evaluations included serum markers and the Disease Activity Score based on 28-joint count-erythrocyte sedimentation rate (DAS28-ESR).Results: Changes in the SUVmax and TLG for the axillary LNs correlated significantly with those of the ipsilateral wrist joints. There was a positive correlation between the changes in the three metabolic parameters of the axillary LNs and the changes in disease activity after treatment. After 6 months of biologic therapy, all metabolic parameters for the axillary LNs in patients with a DAS28-ESR < 3.2 were significantly lower than those of patients with a DAS28-ESR ≥ 3.2.Conclusion: A relationship between the glucose metabolism of the axillary LNs and the ipsilateral wrist joints was demonstrated by the 18F-FDG-PET/CT parameters. The metabolic activity and active volume of axillary LNs may reflect the therapeutic response to the biologic treatment of RA.
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Affiliation(s)
- T T Dam
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan.,Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan.,Radiology Center, Bach Mai Hospital, Hanoi, Vietnam
| | - K Okamura
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - T Nakajima
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Y Yonemoto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - T Suto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Y Arisaka
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - H Tomonaga
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - M Tachibana
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - T Tajika
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - L D Vu
- Radiology Center, Bach Mai Hospital, Hanoi, Vietnam.,Department of Radiology, Hanoi Medical University, Hanoi, Vietnam
| | - H Chikuda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Y Tsushima
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan.,Research Program for Diagnostic and Molecular Imaging, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Gumna, Japan
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Kitaguchi M, Maeda M, Okamura K. Effects of the Speed of Body Weight Loss on Body Composition Changes and Energy Density for Body Weight Loss in Exercised Rats. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.lb554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Megumi Maeda
- Osaka University of Health and sport sciencesOSAKAJapan
| | - Koji Okamura
- Osaka University of Health and sport sciencesOSAKAJapan
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20
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Hirakawa T, Fujii T, Matsumoto K, Okamura K. Effect of Resistance Exercise on Bones in Calcium‐deficient Rats. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.lb553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Takako Fujii
- Osaka University of Health and Sport SciencesOsakaJapan
| | | | - Koji Okamura
- Osaka University of Health and Sport SciencesOsakaJapan
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21
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Kondo E, Shiose K, Yamada Y, Osawa T, Sagayama H, Motonaga K, Ouchi S, Kamei A, Nakajima K, Takahashi H, Okamura K. Effect of Thoracic Gas Volume Changes on Body Composition Assessed by Air Displacement Plethysmography after Rapid Weight Loss and Regain in Elite Collegiate Wrestlers. Sports (Basel) 2019; 7:sports7020048. [PMID: 30791426 PMCID: PMC6410171 DOI: 10.3390/sports7020048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 02/10/2019] [Accepted: 02/15/2019] [Indexed: 11/16/2022] Open
Abstract
We investigated the effect of rapid weight loss (RWL) and weight regain (WR) on thoracic gas volume (VTG) and body composition assessment using air displacement plethysmography (ADP) in male wrestlers. Eight male elite collegiate wrestlers completed a RWL regimen (6% of body mass) over a 53-h period, which was followed by a 13-h WR period. ADP was used at three time points (baseline (T1), post-RWL (T2) and post-WR (T3)) according to the manufacturer’s testing recommendations. The total body water and bone mineral content were estimated using the stable isotope dilution method and dual energy X-ray absorptiometry, respectively, at the same time points. Body composition was assessed with two-component (2C) or four-component (4C) models using either the measured VTG (mVTG) or predicted VTG (pVTG). Measured VTG increased from T1 to T2 (0.36 ± 0.31 L, p < 0.05) and decreased from T2 to T3 (−0.29 ± 0.15 L, p < 0.01). However, the changes in fat mass and fat free mass, which were calculated by both 2C and 4C models, were not significantly different when compared between calculations using mVTG and those using pVTG. Our results indicate that VTG significantly changes during RWL and WR, but both measured and predicted VTG can be used to assess changes in body composition during RWL and WR.
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Affiliation(s)
- Emi Kondo
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Keisuke Shiose
- Department Faculty of Sports and Health Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
| | - Yosuke Yamada
- Section of Healthy Longevity Research, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8636, Japan.
| | - Takuya Osawa
- Department of Sports Wellness Sciences, Japan Women's College of Physical Education, Tokyo 157-0061, Japan.
| | - Hiroyuki Sagayama
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
- Japan Society for the Promotion of Science, Kojimahi Business Center Building, 5-3-1, Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan.
| | - Keiko Motonaga
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Shiori Ouchi
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Akiko Kamei
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Kohei Nakajima
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Hideyuki Takahashi
- Japan Institute of Sports Sciences, 3-15-1, Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Koji Okamura
- Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Osaka 590-0496, Japan.
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22
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Hayashi M, Igarashi A, Okamura K, Suzuki T. Paradoxical exacerbation of latent interstitial pneumonia by secukinumab in a patient with psoriasis vulgaris. Br J Dermatol 2019; 180:684-685. [PMID: 30430554 DOI: 10.1111/bjd.17424] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M Hayashi
- Department of Dermatology, Yamagata University Faculty of Medicine, Iida-Nishi 2-2-2, Yamagata, 990-9585, Japan
| | - A Igarashi
- Department of Cardiology, Pulmonology and Nephrology, Yamagata University Faculty of Medicine, Iida-Nishi 2-2-2, Yamagata, 990-9585, Japan
| | - K Okamura
- Department of Dermatology, Yamagata University Faculty of Medicine, Iida-Nishi 2-2-2, Yamagata, 990-9585, Japan
| | - T Suzuki
- Department of Dermatology, Yamagata University Faculty of Medicine, Iida-Nishi 2-2-2, Yamagata, 990-9585, Japan
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23
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Okamura K, Uchida T, Hayashi M, Yaguchi Y, Hemmi A, Murata I, Ichikawa K, Koyama S, Onoda T, Sasahara Y, Suzuki T. Neutrophilic dermatosis associated with an NFKB2 mutation. Clin Exp Dermatol 2018; 44:350-352. [PMID: 30267444 DOI: 10.1111/ced.13784] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2018] [Indexed: 11/28/2022]
Affiliation(s)
- K Okamura
- Department of Dermatology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - T Uchida
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M Hayashi
- Department of Dermatology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - Y Yaguchi
- Department of Dermatology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - A Hemmi
- Department of Dermatology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - I Murata
- Department of Dermatology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - K Ichikawa
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - S Koyama
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - T Onoda
- Department of Pediatrics, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - Y Sasahara
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Suzuki
- Department of Dermatology, Yamagata University, Faculty of Medicine, Yamagata, Japan
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Suzuki T, Araki Y, Okamura K, Munkhbat B, Tamiya G, Hozumi Y. 1223 Multiple MC1R variants associated with extensive freckles and red hair found in a Mongolian family. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hayashi M, Okamura K, Abe Y, Hozumi Y, Saito I, Suzuki T. 1251 Janus kinase inhibitor tofacitinib does not facilitate the repigmentation in mice model of rhododendrol-induced leukoderma. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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26
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Arita S, Hatta M, Uchida K, Kita T, Okamura K, Ryu T, Murakami H, Sakagami R, Yamazaki J. Peptidylarginine deiminase is involved in maintaining the cornified oral mucosa of rats. J Periodontal Res 2018; 53:750-761. [PMID: 29687476 DOI: 10.1111/jre.12561] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2018] [Indexed: 01/19/2023]
Abstract
BACKGROUND AND OBJECTIVE Epithelial cells derived from different regions exhibit marked differences in their differentiation capacity, allowing them to provide a suitable protective barrier. We aimed to clarify the role of peptidylarginine deiminase (PAD) in modifying the key epidermal proteins filaggrin (FLG) and keratin 1 (K1) during stratification of the rat palate and buccal mucosa. MATERIAL AND METHODS We performed immunofluorescence, immunoblotting, PAD activity assays and 2-dimensional electrophoresis, and developed an organotypic culture model. RESULTS PAD1 expression was highest in the palate, whereas PAD2, PAD3 and PAD4 expression was highest in the skin, suggesting the tissue-specific expression of PAD isozymes that leads to differences in calcium dependency. Immunoblotting showed that the FLG monomer, as well as its degradation products and precursor (proFLG), were most abundantly expressed in the skin but had low expression in the palate, whereas only faint proFLG expression was detected in the buccal mucosa. FLG and K1 were colocalized with PAD1 and were likely to be citrullinated in the cornified layers of the skin; this colocalization was not detected on the palatal surface, and dot-like presence of proFLG that might be citrullinated and that of PAD1 were found in the granules of the palate. Organotypic models derived from the rat palate revealed that PAD inhibition reduced the breakdown of FLG, increased its association with K1 together with epithelial compaction, and decreased permeability in a dye permeability assay. Conversely, PAD stimulation had the opposite effects. CONCLUSION Citrullination is likely a protein modification that plays an important role in maintaining the structure and function of oral cornified mucosa in a way that is distinctly different from that of the skin.
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Affiliation(s)
- S Arita
- Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - M Hatta
- Department of Physiological Science & Molecular Biology, Fukuoka Dental College, Fukuoka, Japan
| | - K Uchida
- Department of Physiological Science & Molecular Biology, Fukuoka Dental College, Fukuoka, Japan
| | - T Kita
- Department of Physiological Science & Molecular Biology, Fukuoka Dental College, Fukuoka, Japan
| | - K Okamura
- Department of Morphological Biology, Fukuoka Dental College, Fukuoka, Japan
| | - T Ryu
- Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - H Murakami
- Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - R Sakagami
- Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - J Yamazaki
- Department of Physiological Science & Molecular Biology, Fukuoka Dental College, Fukuoka, Japan
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Masaki T, Nakano E, Okamura K, Ono R, Sugasawa K, Lee MH, Suzuki T, Nishigori C. A case of xeroderma pigmentosum complementation group C with diverse clinical features. Br J Dermatol 2018; 178:1451-1452. [PMID: 29330851 DOI: 10.1111/bjd.16339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T Masaki
- Division of Dermatology, Internal Related, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - E Nakano
- Division of Dermatology, Internal Related, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - K Okamura
- Department of Dermatology, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - R Ono
- Division of Dermatology, Internal Related, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - K Sugasawa
- Biological Research Center, Kobe University, 1-1, Rokkodai, Nada-ku, Kobe, 657-8501, Japan
| | - M-H Lee
- Department of Dermatology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - T Suzuki
- Department of Dermatology, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - C Nishigori
- Division of Dermatology, Internal Related, Graduate School of Medicine, Kobe University, Kobe, Japan
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Okuno M, Ayabe T, Yokota I, Musha I, Shiga K, Kikuchi T, Kikuchi N, Ohtake A, Nakamura A, Nakabayashi K, Okamura K, Momozawa Y, Kubo M, Suzuki J, Urakami T, Kawamura T, Amemiya S, Ogata T, Sugihara S, Fukami M. Protein-altering variants of PTPN2 in childhood-onset Type 1A diabetes. Diabet Med 2018; 35:376-380. [PMID: 29247561 DOI: 10.1111/dme.13566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/12/2017] [Indexed: 12/31/2022]
Abstract
AIM To examine the contribution of PTPN2 coding variants to the risk of childhood-onset Type 1A diabetes. METHODS PTPN2 mutation analysis was carried out for 169 unrelated Japanese people with childhood-onset Type 1A diabetes. We searched for coding variants that were absent or extremely rare in the general population and were scored as damaging by multiple in silico programs. We performed mRNA analysis and three-dimensional structural prediction of the detected variants, when possible. We also examined possible physical links between these variants and previously reported risk SNPs as well as clinical information from variant-positive children. RESULTS One frameshift variant (p.Q286Yfs*24) and two probably damaging missense substitutions (p.C232W and p.R350Q) were identified in one child each. Of these, p.Q286Yfs*24 and p.C232W were hitherto unreported, while p.R350Q accounted for 2/121,122 alleles of the exome datasets. The p.Q286Yfs*24 variant did not encode stable mRNA, and p.C232W appeared to affect the structure of the tyrosine-protein phosphatase domain. The three variants were physically unrelated to known risk SNPs. The variant-positive children manifested Type 1A diabetes without additional clinical features and invariably carried risk human leukocyte antigen alleles. CONCLUSIONS The results provide the first indication that PTPN2 variants contribute to the risk of Type 1A diabetes, independently of known risk SNPs. PTPN2 coding variants possibly induce non-specific Type 1A diabetes phenotypes in individuals with human leukocyte antigen-mediated disease susceptibility. Our findings warrant further validation.
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Affiliation(s)
- M Okuno
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo
- Department of Paediatrics and Child Health, Nihon University School of Medicine, Tokyo
| | - T Ayabe
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo
| | - I Yokota
- Department of Paediatrics, Division of Paediatric Endocrinology and Metabolism, Shikoku Medical Centre for Children and Adults, Kagawa
| | - I Musha
- Department of Paediatrics, Saitama Medical University, Faculty of Medicine, Saitama
| | - K Shiga
- Department of Paediatrics, Children's Medical Centre, Yokohama City University Medical Centre, Yokohama
| | - T Kikuchi
- Department of Paediatrics, Saitama Medical University, Faculty of Medicine, Saitama
| | - N Kikuchi
- Department of Paediatrics, Yokohama City Minato Red Cross Hospital, Yokohama
| | - A Ohtake
- Department of Paediatrics, Saitama Medical University, Faculty of Medicine, Saitama
| | - A Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo
| | - K Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo
| | - K Okamura
- Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo
| | - Y Momozawa
- Laboratory for Genotyping Development, Riken Centre for Integrative Medical Sciences, Kanagawa
| | - M Kubo
- Laboratory for Genotyping Development, Riken Centre for Integrative Medical Sciences, Kanagawa
| | - J Suzuki
- Department of Paediatrics and Child Health, Nihon University School of Medicine, Tokyo
| | - T Urakami
- Department of Paediatrics and Child Health, Nihon University School of Medicine, Tokyo
| | - T Kawamura
- Department of Paediatrics, Osaka City University School of Medicine, Osaka
| | - S Amemiya
- Department of Paediatrics, Saitama Medical University, Faculty of Medicine, Saitama
| | - T Ogata
- Department of Paediatrics, Hamamatsu University School of Medicine, Hamamatsu
| | - S Sugihara
- Department of Paediatrics, Tokyo Women's Medical University Medical Centre East, Tokyo, Japan
| | - M Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo
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Nakamura S, Miyado M, Saito K, Katsumi M, Nakamura A, Kobori Y, Tanaka Y, Ishikawa H, Yoshida A, Okada H, Hata K, Nakabayashi K, Okamura K, Ogata H, Matsubara Y, Ogata T, Nakai H, Fukami M. Next-generation sequencing for patients with non-obstructive azoospermia: implications for significant roles of monogenic/oligogenic mutations. Andrology 2018; 5:824-831. [PMID: 28718531 DOI: 10.1111/andr.12378] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/29/2017] [Accepted: 04/09/2017] [Indexed: 11/29/2022]
Abstract
Azoospermia affects up to 1% of adult men. Non-obstructive azoospermia is a multifactorial disorder whose molecular basis remains largely unknown. To date, mutations in several genes and multiple submicroscopic copy-number variations (CNVs) have been identified in patients with non-obstructive azoospermia. The aim of this study was to clarify the contribution of nucleotide substitutions in known causative genes and submicroscopic CNVs in the genome to the development of non-obstructive azoospermia. To this end, we conducted sequence analysis of 25 known disease-associated genes using next-generation sequencing and genome-wide copy-number analysis using array-based comparative genomic hybridization. We studied 40 Japanese patients with idiopathic non-obstructive azoospermia. Functional significance of molecular alterations was assessed by in silico analyses. As a result, we identified four putative pathogenic mutations, four rare polymorphisms possibly associated with disease risk, and four probable neutral variants in 10 patients. These sequence alterations included a heterozygous splice site mutation in SOHLH1 and a hemizygous missense substitution in TEX11, which have been reported as causes of non-obstructive azoospermia. Copy-number analysis detected five X chromosomal or autosomal CNVs of unknown clinical significance, in addition to one known pathogenic Y chromosomal microduplication. Five patients carried multiple molecular alterations. The results indicate that monogenic and oligogenic mutations, including those in SOHLH1 and TEX11, account for more than 10% of cases of idiopathic non-obstructive azoospermia. Furthermore, this study suggests possible contributions of substitutions in various genes as well as submicroscopic CNVs on the X chromosome and autosomes to non-obstructive azoospermia, which require further validation.
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Affiliation(s)
- S Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi, Japan
| | - M Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Saito
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Katsumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of NCCHD Child Health and Development, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Y Kobori
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - Y Tanaka
- Department of Pediatrics, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - H Ishikawa
- Reproduction Center, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - A Yoshida
- Reproduction Center, Kiba Park Clinic, Tokyo, Japan
| | - H Okada
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - K Hata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Okamura
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
| | - H Ogata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Y Matsubara
- National Research Institute for Child Health and Development, Tokyo, Japan
| | - T Ogata
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - H Nakai
- Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi, Japan
| | - M Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
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Takino T, Shibuma S, Kanemaru Y, Okamura K, Oshima A, Tazawa M, Nashimoto T, Tsuchiya N, Yoshimura J, Netsu K, Saito T. [Bilateral Internal Carotid Artery Dissection Caused by Elongated Styloid Processes:A Case Report]. No Shinkei Geka 2018; 46:53-59. [PMID: 29362286 DOI: 10.11477/mf.1436203675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We report a case of bilateral internal carotid artery(ICA)dissection associated with bilateral elongated styloid processes(ESPs). A 46-year-old man presented with transient aphasia and left visual disturbance at a business meeting. He complained of a foreign body sensation in his throat during swallowing for two years. Magnetic resonance imaging(MRI)demonstrated fresh small infarcts in the left corona radiata. Magnetic resonance angiography(MRA)revealed string signs bilaterally in the cervical ICAs. The patient was diagnosed with bilateral idiopathic ICA dissection and was treated with ozagrel and clopidogrel. Three-dimensional computed tomographic angiogram(3DCTA)indicated bilateral ESPs and bilateral ICA stenosis. 3DCTA with the patient's head tilting and neck extension revealed that each ICA was compressed by the ipsilateral ESP. A follow-up MRA showed complete normalization of bilateral ICAs after neck rest and anti-platelet therapy, following which, clopidogrel was stopped. The patient wore a soft cervical collar until the operation, to avoid contact between the ESPs and ICAs due to changes in head position. Bilateral ESP resection was performed to prevent recurrence of cerebral ischemic events caused by ICA dissection. The patient was discharged one week after the surgery without any neurological deficit. There was no recurrence of symptoms during the next eight months after the operation.
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Affiliation(s)
- Toru Takino
- Department of Neurosurgery, Nagano Red Cross Hospital
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Shimizu S, Okamura K, Hahm JS, Kim YW, Han HS, Torata N, Antoku Y, Lee YS, Tanaka M, Nakashima N. Development of a Broadband Telemedical Network Based on Internet Protocol in the Asia-Pacific Region. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1625432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Summary
Objectives
: To promote the exchange of knowledge and standardization of medical procedures and medical systems in the Asia-Pacific region, we established a medical networkwith high-quality moving images over broadband Internet lines in February 2003.
Methods
: Real-time teleconferences and live demonstrations with medical-qualityvideos, broadcastvia the Digital Video Transport System, have been used t teach surgical techniques and other medical procedures across national borders.The Asia-Pacific Advanced Network (APAN) committee in August 2005 formally approved our proposal to establish a medical working group within APAN. The networkwas expanded by the launch of the Trans- Eurasia Information Network 2 in 2006. By the end of 2006, we had conducted 82 events, in 10 countries in the Asia-Pacific region. The multi-station event has increased everyyear.
Results
: There have been no serious transmission problems or ethical conflicts so far. With these experiences and current achievements, we hope to extend this advanced network system to the entire Asia-Pacific.
Conclusion
: This system is a promising and very useful tool for the standardization of medical system and procedures across national borders. Drawing upon these experiences and current achievements, we hope to extend this advanced network system to the entire Asia- Pacific region.
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Hayashi M, Okamura K, Araki Y, Suzuki M, Tanaka T, Abe Y, Nakano S, Yoshizawa J, Hozumi Y, Inoie M, Suzuki T. Spectrophotometer is useful for assessing vitiligo and chemical leukoderma severity by quantifying color difference with surrounding normally pigmented skin. Skin Res Technol 2017; 24:175-179. [DOI: 10.1111/srt.12410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2017] [Indexed: 11/28/2022]
Affiliation(s)
- M. Hayashi
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - K. Okamura
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - Y. Araki
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - M. Suzuki
- Japan Tissue Engineering Co., Ltd.; Gamagori Aichi Japan
| | - T. Tanaka
- Japan Tissue Engineering Co., Ltd.; Gamagori Aichi Japan
| | - Y. Abe
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - S. Nakano
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - J. Yoshizawa
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - Y. Hozumi
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
| | - M. Inoie
- Japan Tissue Engineering Co., Ltd.; Gamagori Aichi Japan
| | - T. Suzuki
- Department of Dermatology; Yamagata University Faculty of Medicine; Yamagata Yamagata Japan
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Hayashi M, Okamura K, Konno T, Onami K, Nikaido M, Araki Y, Hozumi Y, Suzuki T. 547 FOXD1 is overexpressed in melanoma but not in melanocytic nevi, and associated with melanoma cells proliferation. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fukuda J, Okamura K, Ishihara K, Mizumoto H, Nakazawa K, Ijima H, Kajiwara T, Funatsu K. Differentiation Effects by the Combination of Spheroid Formation and Sodium Butyrate Treatment in Human Hepatoblastoma Cell Line (Hep G2): A Possible Cell Source for Hybrid Artificial Liver. Cell Transplant 2017; 14:819-27. [PMID: 16454356 DOI: 10.3727/000000005783982503] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The aim of this study was to investigate the feasibility of human hepatoblastoma cell line (Hep G2), which differentiates by spheroid formation, and treatment with sodium butyrate (SB) as a cell source for hybrid artificial liver (HAL). Hep G2 spontaneously formed spheroids in polyurethane foam (PUF) within 3 days of culture and restored weak ammonia removal activity. Treatment with SB, which is a histone deacetylase inhibitor, further increased the ammonia removal activity of Hep G2 spheroids in a concentration-dependent manner. The activation of ornithine transcarbamylase—a urea cycle enzyme—was significantly related to the upregulation of ammonia removal by spheroid formation, but scarcely contributed to the further upregulation following SB treatment. In contrast with ammonia removal, treatment with SB reduced the albumin secretion of Hep G2 spheroids in a concentration-dependent manner. In the PUF-HAL module in a circulation culture, the ammonia removal rate and albumin secretion rate (per unit volume of the module) of Hep G2 spheroids treated with 5 mM SB were almost the same as those of primary porcine hepatocyte spheroids. These results suggest that simultaneous use of spheroid formation and SB treatment in Hep G2 is beneficial in enhancing the functions of human hepatocytes with potential applications in regenerative medicine and drug screening.
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Affiliation(s)
- J Fukuda
- Department of Chemical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan
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35
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Suzuki T, Abe Y, Okamura K, Hozumi Y. 774 Analysis of repigmentation in a chemical leukoderma using a model mouse. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Okamura K, Hayashi M, Hozumi Y, Suzuki T. 487 A novel variant in the regulatory region of the SLC45A2 is associated with mild OCA4. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Okamura K, Nawata K, Kimura M, Kinoshita O, Masuzawa A, Yamauchi H, Hirata Y, Owada Y, Oshiro Y, Okamoto H, Ohkohchi N, Ono M. The Prevalence of Hepatitis E Virus Serum Antibodies and RNA in Heart Transplant Recipients. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Nishisouzu T, Abe A, Matoba S, Dochi O, Okamura K. 100 FACTORS AFFECTING PREGNANCY RATES IN THE TRANSFER OF IN VITRO-PRODUCED JAPANESE BLACK CATTLE EMBRYOS. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Despite the rapid expansion of in vitro embryo production (IVP) technology for genetic improvement in the cattle industry in the last decades, pregnancy rates by the transfer of IVP embryos are still lower than those derived from in vivo-produced embryos. The objective of this study was to analyse factors affecting pregnancy rates after the transfer of IVP Japanese Black cattle embryos under farm conditions. Holstein heifers (n = 4,475) and cows (n = 8,541) were selected as recipients. Most cows (80%) were managed in tie-stall barns and most heifers (80%) were managed in pens. Embryo transfers were performed for 9 years, from 2004 to 2012. The embryos were produced from oocytes derived from a local abattoir and semen from 14 proven bulls by the Livestock Improvement Association of Japan (Hamano and Kuwayama 1993 Theriogelogy 39, 703–712). The fresh IVP embryos (quality; IETS code 1) that reached the blastocyst stage after 7 to 8 days (insemination = Day 0) were transported by an airplane (2 h) and subsequently by a car (1.5 h). Embryos were non-surgically transferred to each recipient on Day 7 to 9 of their natural oestrous cycle on farms. Pregnancy was diagnosed on Day 40 to 60 after oestrus. Pregnancy results were statistically analysed using the GLM procedures of SAS. The following variables were included in the model: recipient parity (0, 1, 2, or 3), day (7, 8, or 9) of the oestrous cycle at the time of embryo transfer, oestrus behaviour (increased activity observed by farmers), presence of mucus at oestrus, presence of blood after oestrus, and year (1, 2, 3, 4, 5, 6, 7, 8, or 9) and season (April–June as spring, July–September as summer, October–December as fall, or January–March as winter) of embryo transfer. The Bonferroni correction was used to counteract the problem of multiple comparisons. Heifers had significantly higher pregnancy rates than cows (51.0% v. 37.9%, respectively; P < 0.01), and first parity cows had higher pregnancy rates than third parity cows (42.9% v. 35.7%, respectively; P < 0.01). Pregnancy rates were significantly higher in recipients that received an embryo transfer on Day 8 of their oestrous cycle, than on Day 7 (46.6% v. 42.4%, respectively; P < 0.01). Recipients without oestrus behaviour had higher pregnancy rates than those with oestrus behaviour (46.3% v. 43.4%, respectively; P < 0.01). The presence of mucus and/or blood after oestrus and the season of transfer were not found to significantly affect pregnancy rates. The results of this study indicated that performing IVP embryo transfers on Day 8 of a recipient’s oestrous cycle will improve the pregnancy rate, season does not have an effect on pregnancy rate, and the detection of oestrus by monitoring increased activity is not always reliable and instead should be determined by multiple symptoms on farm conditions.
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Abstract
A molecular basis for Cl− re-absorption has not been well-characterized in salivary ductal cells. Previously, we found strong expression of a rat homologue proposed to be Ca2+-dependent Cl− channels (rCLCA) in the intralobular ducts of the rat submandibular gland. To address the question as to whether rCLCA and cystic fibrosis transmembrane conductance regulator (CFTR) are involved in Cl− re-absorption, we evaluated the electrolyte content of saliva from glands pre-treated with a small interfering RNA (siRNA). Retrograde injection into a given submandibular duct of an siRNA designed to knock down either rCLCA or CFTR reduced the expression of each of the proteins. rCLCA and CFTR siRNAs significantly increased Cl− concentration in the final saliva during pilocarpine stimulation. These results represent the first in vivo evidence for a physiological significance of rCLCA, along with CFTR, in transepithelial Cl− transport in the ductal system of the rat submandibular gland.
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Affiliation(s)
- K Ishibashi
- Department of Functional Bioscience, Fukuoka Dental College, Japan
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Abstract
We established an interactive digital video link between specialists at Flinders University, South Australia and Kyushu University, Japan, with a third site at the National University of Singapore. The system provided standard definition, non-compressed video at 30 frames per second and required 32 Mbit/s bandwidth per bidirectional connection. The quality of the surgical images was sufficient to allow surgeons at remote sites to develop a good idea of the surgical technique, and there was general agreement that this was a viable tool for remote surgical training. The images and interactions were significantly better than those typical of conventional videoconferencing. The challenge now is to develop structured education sessions utilising additional materials to supplement the surgical sessions, and to develop an appropriate pedagogical framework for this form of learning.
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Affiliation(s)
- Colin Carati
- Department of Anatomy and Histology, School of Medicine, Flinders University, Adelaide, Australia
| | - Shuji Shimizu
- Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, Japan
| | - Koji Okamura
- Computing and Communications Centre, Kyushu University, Fukuoka, Japan
| | - Davide Lomanto
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore
| | - Masao Tanaka
- Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, Japan
| | - Jim Toouli
- Department of Surgery, School of Medicine, Flinders University, Adelaide, Australia
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Goto TK, Yoshiura K, Nakayama E, Yuasa K, Tabata O, Nakano T, Kawazu T, Tanaka T, Miwa K, Shimizu M, Chikui T, Okamura K, Kanda S. The combined use of US and MR imaging for the diagnosis of masses in the parotid region. Acta Radiol 2016; 42:88-95. [PMID: 11167339 DOI: 10.1080/028418501127346305] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: To evaluate the usefulness of the combination of the two non-invasive modalities US and MR imaging to diagnose masses in the parotid region. Material and Methods: The US and MR findings of 21 patients with parotid masses were analyzed retrospectively by two radiologists without any clinical or histopathological information. The specific points evaluated were location, shape, margin, internal architecture, and intensity level on both US and MR, posterior echo enhancement on US, and capsule-like lining of the tumor on MR. Results: The findings concerning the shape and margin on US and MR were in fairly good agreement. Concerning the findings of the internal architecture, US could reveal the minute structures of the tumor while MR demonstrated differences in the signal intensities of histological tissue types of the various tumors. The posterior echo enhancement on US and the capsule-like lining on MR of the tumors were also useful for the diagnosis. Conclusion: Our results suggest that the combination of US and MR is useful for examining soft tissue masses in the parotid region to make a more accurate diagnosis, and not just differentiate malignant lesions from those which are benign.
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Affiliation(s)
- T K Goto
- Department of Oral and Maxillofacial Pathophysiology, Faculty of Dentistry, Kyushu University, Fukuoka, Japan
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Suto T, Yonemoto Y, Okamura K, Okura C, Takagishi K. FRI0101 Assessment of Large Joint Destruction in Patients with Rheumatoid Arthritis: A Prospective Study Using FDG-PET/CT and Arashi Scoring Method. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Yonemoto Y, Okamura K, Okura C, Suto T, Takagishi K. SAT0143 The Effect of Total Knee Arthroplasty on The Arthritis of Other Joints in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Tajika T, Kobayashi T, Yamamoto A, Kaneko T, Shitara H, Shimoyama D, Iizuka Y, Okamura K, Yonemoto Y, Warita T, Ohsawa T, Nakajima I, Iizuka H, Takagishi K. A clinical and ultrasonographic study of risk factors for elbow injury in young baseball players. J Orthop Surg (Hong Kong) 2016; 24:45-50. [PMID: 27122512 DOI: 10.1177/230949901602400112] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
PURPOSE To determine the risk factors for elbow injury and its association with glenohumeral internal rotation deficit among young baseball players. METHODS 229 baseball players aged 9 to 14 (mean, 11) years completed a self-administered questionnaire with items related to years of playing baseball, hours of training per weekday, days of training per week, and past and present experience of elbow pain. Two orthopaedic surgeons measured the range of motion of both shoulders and elbows. Another 2 orthopaedic surgeons performed ultrasonography to detect any elbow abnormality such as fragmentation of the medial epicondylar apophysis and osteochondritis dissecans of the capitellum. Using univariate and multivariable analyses, participants with or without elbow abnormality were compared to determine the risk factors for elbow abnormality. RESULTS Elbow abnormality was detected in 100 of the participants and comprised osteochondritis dissecans of the capitellum (n=18) and fragmentation of the medial epicondylar apophysis (n=82). Elbow abnormality was associated with being a pitcher, past and present experience of elbow pain, loss of elbow extension, and the side-to-side internal rotation difference. The 100 participants with elbow abnormality were stratified into symptomatic (n=57) or asymptomatic (n=43) of elbow pain. Those with elbow abnormality and elbow pain was associated with being a pitcher. CONCLUSION Being a pitcher was a risk factor for both elbow abnormality and elbow pain. Nonetheless, 43% of baseball players with elbow abnormality were asymptomatic. The use of ultrasonography was effective in detecting elbow abnormality and enabling early treatment.
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Affiliation(s)
- T Tajika
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - T Kobayashi
- Department of Physical therapy, Takasaki university of Health and Welfare, Gunma, Japan
| | - A Yamamoto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - T Kaneko
- Department of Orthopaedic Surgery, Inoue Hospital, Gunma, Japan
| | - H Shitara
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - D Shimoyama
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Y Iizuka
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - K Okamura
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Y Yonemoto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - T Warita
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - T Ohsawa
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - I Nakajima
- Department of Orthopaedic Surgery, Saiseikai maebashi Hospital, Gunma, Japan
| | - H Iizuka
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - K Takagishi
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
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Owari T, Okamura K, Fukushi K, Kasahara H, Tatsumi S. Single-tree management for high-value timber species in a cool-temperate mixed forest in northern Japan. International Journal of Biodiversity Science, Ecosystem Services & Management 2016. [DOI: 10.1080/21513732.2016.1163734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Toshiaki Owari
- The University of Tokyo Hokkaido Forest, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Furano, Japan
| | - Koji Okamura
- The University of Tokyo Hokkaido Forest, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Furano, Japan
| | - Kenji Fukushi
- The University of Tokyo Hokkaido Forest, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Furano, Japan
| | - Hisatomi Kasahara
- The University of Tokyo Hokkaido Forest, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Furano, Japan
| | - Shinichi Tatsumi
- Division of Natural Environment and Information Research, Graduate School of Environmental and Information Science, Yokohama National University, Yokohama, Japan
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Okura C, Ishikawa H, Abe A, Oyakawa T, Miyagawa Y, Otani H, Kobayashi D, Ito S, Nakazono K, Yonemoto Y, Okamura K, Suto T, Murasawa A, Takagiishi K. THU0092 The Long-Lasting Benefits of Upper Extremity Surgery for Disabled Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Suto T, Okamura K, Yonemoto Y, Okura C, Tsushima Y, Takagishi K. AB0318 Prediction of Large Joint Destruction in Patients with Rheumatoid Arthritis Using FDG-PET/CT. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hasegawa H, Fujihara T, Mukumoto M, Tawara H, Okamura K. Hydration Status and Voluntary Fluid Intake in College‐Age Gymnasts Training in a Hot Environment. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.lb304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroyuki Hasegawa
- Graduate School of Sport and Exercise Sci. Osaka Univ. of Health and Sport Sci.Japan
| | - Toshiyuki Fujihara
- Department of Physical Education Osaka Univ. of Health and Sport Sci.Japan
| | - Masanobu Mukumoto
- Department of Physical Education Osaka Univ. of Health and Sport Sci.Japan
| | - Hiroaki Tawara
- Department of Physical Education Osaka Univ. of Health and Sport Sci.Japan
| | - Koji Okamura
- Graduate School of Sport and Exercise Sci. Osaka Univ. of Health and Sport Sci.Japan
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Maeda M, Fujii T, Tai Y, Okamura K. Climbing exercise training does not improve insulin resistance in high‐fat diet‐induced obese rats. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.595.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Megumi Maeda
- Sport SciencesOsaka University of Health and Sport SciencesOsakaJapan
| | - Takako Fujii
- Sport SciencesOsaka University of Health and Sport SciencesOsakaJapan
| | - Yuki Tai
- Sport SciencesOsaka University of Health and Sport SciencesOsakaJapan
| | - Koji Okamura
- Sport SciencesOsaka University of Health and Sport SciencesOsakaJapan
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Tai Y, Fujii T, Maeda M, Okamura K. Relationship between expended energy and stored energy as lean and adipose tissues in growing rats. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.lb362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuki Tai
- Graduate School of Sport Sciences Osaka University of Health and Sport SciencesOsakaJapan
| | - Takako Fujii
- Graduate School of Sport Sciences Osaka University of Health and Sport SciencesOsakaJapan
| | - Megumi Maeda
- Graduate School of Sport Sciences Osaka University of Health and Sport SciencesOsakaJapan
| | - Koji Okamura
- Graduate School of Sport Sciences Osaka University of Health and Sport SciencesOsakaJapan
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